A byproduct of protein catabolism,__________ constitutes approximately one-half of all nitrogenous waste.
A) urea
B) creatinine
C) uric acid
D) azotemia
E) ammonia

Question

Quizplus · Accepted Answer

Urea is the byproduct of protein catabolism and constitutes approximately one-half of all nitrogenous waste. Creatinine is produced from creatine metabolism in muscles, uric acid is a byproduct of nucleic acid metabolism, and azotemia is a medical condition characterized by high levels of nitrogenous waste in the blood. Ammonia is also a byproduct of protein catabolism but is converted into urea in the liver.

A Byproduct of Protein Catabolism,__________ Constitutes Approximately One-Half of All